Even though the creator of the GIF has settled it already.

SIGGRAPH

This release is packed with many new features and numerous performance optimizations. Performance has been a big focus for us as we prepare to ship our next game, Paragon. Several new rendering and animation features focused on rendering realistic characters are in 4.11, as are new audio features and tools improvements. UE4 continues to push VR forward with improvements to VR rendering and support for the latest SDKs so that you can ship your games as VR hardware becomes available to consumers.

Inkscape is free, professional quality vector graphics software which runs on Windows, Mac OS X and Linux.

Tessellation is a repeating pattern of the same shapes without any gaps or overlaps. These patterns are found in nature, used by artists and architects and studied for their mathematical properties.